Can-cover hinge



Pateniea od. 9, V1928.

UNITED i srAT'Es `PAfrlaiii'r OFFICE.

FEANK G. DAV ISON, OF CAMBR-IDGE, MASSACHUS ETTS, ASSIGNOR, BY MESNE AS- SIGNMENTS, TO ARTHUR H. PARKER, OF LEXINGTON, MASSACHUSETTS CAN-COVER HINGEJ Application filcd Decembe'r 18 1924. Serial No. 756,689.

This'invention relates to the structure of hingeljoints and has particular reference to thehinged covers of cracker boxes although I do not limit myselfto employinentv ofthe hinge in boxes of that specific type. The invention is especially adapted for structures in which the two members to be hinged together are made of sheet metal. I

` The object of the invention is to provide a strong-and durable hinge the parts of which can be reaolily -assembled and which require no soldering or equivalent treatment or operation to render separation practically impossible. v With the above object in view, the invention 'consists in the construction and combi- I nation of parts substantially as hereinafter described and claimed.

Of the accompanyingfldrawings,

of any size.Y s

VFigure 2 is an under plan View, on a smaller scale, of the hingedly Connected members.

Figures 3 and 4 lrepresent sectional views on lines 3-3 and 4-4 respectively of Figure 2 on a larger scale.

VFigure 5 is a detail view hereinafter referred to.

Figure 6 is a broken away perspective view of the lower and upper members, the'latter being partly raised.

Similar reference characters indicate similar parts in all of the views.

. In the drawings one of the two members hinged together is indicated at 12, it ,being illustrated as the upper portion of a welllniown form of cracker box. It provides .the frame for the top of the box. Its-customary 40 rectangular openingis, as usual, reinforced as indicatedat 13 in Figures 3 and 4. The

ledge along one side ofsaid rectangular opening has alternating depressions in opposite directions to form under and upper grooves in a straight row. Three of the grooves 14 are in the under surface of 'the ledge as indicated by comparing Figures 1, 2 and 3, and alternating therewith endwise are four grooves 15 in the upper surface of the ledge (Figs. 1, 2, 4 and 6).V

The other member, comprising the cover 16 of the box, said cover usually having a rectangular opening with a sheet of glass Figure 1 is a top plan view, partly broken out to indicate thatthe can cover may be i g members 12 and 16A are formed each complete,

Connected thereto7 hasone of vits extreme edges'formed .into four tubular pintle bearings 17 ((Figs. 1, 4, 5; and 6) of such length and formation as to practically fit the grooves 15 of the "lower member, alternating With, and in alinement with, the grooves 14.

A single marginal Vrei'nforcing Wire 18 eX- depending flanges of -the,.cover, the ends of said wire'extending into but not entirely through the two end bearings 17 (Figs. 1,

. tends around the cover and is enclosed in three rolled portions of the edge of one ofithe Band 6). The ends of said Wire are preferably'` locked in said bearings, as by slightly enlarging the tips as indicated at 18', and indenting the' bearings to cooperate therewith. Said ends or tips 18' of the wire serve as abutments for the outer endsvoftwo 'pintle wires or rods 19,'Which meet at their inner ends` as shown at the mid-width of igure 2.

'In the making of'this structure,"the two `the-member16, 'being also of sheet metal, is

readily provided lwith the bearings 17 byrolling edge portions thereof into tubular form. v

The two members formed as'described are brought together with the tubular bearings 17 seated in'the grooves 15.v 'At this time all of the grooves 14 (Fig. 2) are vacant. Then :one of the pintle wires 19 is inserted at one end of the middle groove14 (Fig. 2) and pushed through the alined bearings until its far end abuts the tip 18' of the wire 18, and then the other pintle wire 19 is similarly inserted and pushed in the opposite 'direction until its end abuts the other wire tip 18'.l In

practicethetwo pintle wires are sufficiently resilient to permit this to be done although they are -of a diameter to quite closely fit the bearings. i When the second pintle has been pushed as far as it willgo, as above described, its end Which remains at the und-length of thehinge snaps into alignment with the end of the first-inserted pintle. Consequently neither pintle'can thenfshift endwise nor be removed without employing some forceapplying tool. Said pintles will reliably remain invoperative positions in the bearings 17 "gr'ooves ili of said lower memher, and being` therehy prevented from shifting upvvardly.

'Having now described my invention, I

claim 1. In a hinge structure for tvvo sheet metal menihers,` the oombination With said sheet metal members one of Which has aiigned portions alternateiy dispiaced in opposite directions to present grooves in both the inner and outer surfaces thereof, the other member having edge portions hent to provide three open ended tuhuiar hearings suhstantiaiiy fitting the groove's in 'the outer surfaces of the firstnanied member, a hind' eg' Wire extending around ano'reinforeing the edge of said other member, the ends of the hinding Wire extending into the outer ends' of thetWo end tuhuia'r earings but not through said hearings, and two pinties engaged With said bea 1ings and With the grooves in the inner Vsurface of the first-nained member, said pinties ehutting each other at their adjacent ends and ahutting the ends of the hinding` Wire at their outer ends and being insertable into operative position through the central groove in said outer surface. I

A2. A sheet metal box frame having portions in alinement alternateiy displaced in opposite directions to present grooves in its upper and under surfaoes, a cover having tubular hearings extending into the upper grooves of said frame, said cover having` an edge-reinforcing Wire the ends of Which eXtend into the extreme two of said hearings, anda pair of pintles extending through intermediate hearings and engaged with the under grooves of the frame, the onter ends of said pintles extending into said extreme hearings and the inner ends ahidt'k gand being exposed at the central under froove.

3. 'hinge structure of the character specified in claim 2, ltheV endsl of the reinforcing Wire fbeine interioched With the bearing's Which receive hem. v i i The comhination With a vcan-top frame havA w portions in aiinement ait'ernately) dispiaeed in opposite directionsA to present grom/*es in the upper and unoersurfaces thereof, of a cover having edffe portions hent to provide a phiraiity of tuhular bearings suhsteutiaiij; :titting the upper grooves in sald with said bearings and With the .i u r grooves of said frame, the tWoend tuhnlar bearing's enciosing the outer ends of the pinties and having means to prevent ione'itudinai movements of the pintles.

, testimony Whereof I have aflixed my signature.

FRANK G. DAVISON.

ne, and a pair of pinties end to end and 

